Elevator



(NoModeL) 3 sheetssheet 1. B. A. LEGG.

ELEVATOR.

No. 330,792. I l Patented Nov. 17, 1885.

nnnnnnnnllnnnn Vl/VVVvUl/v v Witnesses; Inverflmr:

N, PETERS. Fhoto-Lflhogmpher. Wnhinglnm u c (110 Model.) 3 Sheets-8heet2 B. A. LEGG.

ELEVATOR; No. 330,792. Patented N0v."1'7-, 1885.

lnzrenior:

Wzinesses:

N PETERS. Phutwumo m her. Wnhington. Dc.

(No ModeL) -3 Sheef-Sheet 3. B. A. LEGG.

ELEVATOR. N0 330,'792'. Patented NOV. 17, 1885.

N. PETERS. wmmumn w. Washington. D. a

UNITED STATES PATENT OFFICE.

BENJAMIN A. LEGG, OF COLUMBUS, OHIO, ASSIGNOR TO JOSEPH A. JEEEEEY,

' OF SAME PLACE.

ELEVATOR.

SPECIFICATIONforming part of Letters Patent No. 330,792, dated November17, 1885.

Application filed April 22, 1885. Serial No. 163,062. (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN A. LEGG, a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Elevators, of which thefollowing is a specification, reference being had therein to theaccompanying drawings.

Figure 1 is a side elevation of an elevator embodying my improvements.Fig. 2 is a front view of the same. Fig. 3 is a sectional view of a partof the gearing on a larger scale. Fig. 4 shows the lower end of theelevator. Fig. 5 shows the lower end of the adjustingscrew. Fig. 6 is ahorizontal section on line as 00. Figs. 7 and 8 show the slidingpowershaft. Fig. 9 is a sectional view of the parts at the upper end ofthe screw. Fig. 10 is a side view of the elevator-frame. Fig. 11 shows amodification of the parts in Fig. 6, and Fig. 12 a modification of thosein Fig. 5.

In the drawings the elevator is shown as having a stationary frameconsisting of the front uprights, A A, rear uprights, B B, bottom sills,A A, top sills, A A, and intermediate sills, A.

The elevator proper consists of a chain or chains, 13, carrying bucketsB, the chains engaging with wheels 13 at the top and wheels B at thebottom.

O is the shaft at the top, which carries the upper wheels, and G thebottom shaft for the wheels B. These latter parts are supported in anadjustable frame having side pieces and as many cross-bars as arenecessary.

As shown, the side parts are constructed of bars D D, at top and bottom,connected by two bars, D D These latter are so arranged, as will beseen, as to leavea passage-way between them for a purpose to bedescribed, there being one of these passage-ways on each side of theelevator.

The movable elevator-frame is connected with the stationary frame bymeans of a shaft, E, which, as shown, is mounted in bearings at e at theupper end of the last said frame, and is made either insections, as inFig. 5, or continuous, as in Fig. 12. The connection between the twoframes is effected by means of a screw-shaft, F, which is carried by themovable frame and secured thereto by means of the cross-bars d d, theshaft having collars, which prevent it from moving endwise, but permitit to rotate in the bearings on said crossbars. At E there is a nutcarried by the shaft E, with which the shaft F engages, it being securedas in Fig. 5 or Fig. 12, or in other suitable way. If the screw-shaft berotated in one direction or the other, the movable frame will be raisedor lowered, as will be more fully hereinafter described.

The devices by which power is imparted to the chains, and also those bywhich the screwshaft F is rotated, are constructed and arranged asfollows: At H there is an engine, which may be of any preferred form. Itdrives a wheel, h, which is connected with a wheel, h, by a chain, h.The shaft h which carries Wheel h, also has a second chain-wheel, h,which is connected by chain h with a wheel, E on shaft E. This wheel isloose thereon, and is formed with an elongated hub or sleeve, E to theouter end of which is keyed a bevel-pinion, I.

J is a shaft mounted at right angles to the shaft E. At the lower end itis supported in the bracket having arms J and J which are provided witha bearing at j for the lower end of the shaft J, and atj with a bearingfor the sleeve E The wheel I engages with a bevelwheel, I, carried bythe shaft J. It will be seen that the wheels E and I will revolve freelyindependently of the shaft E, and also that the bearing-brackets J and Jcan be swung into any desired position without varying the workingrelation between the bevelwheels I and I. At the upper end of shaft Jthere is a bevel-wheel, K, meshing with a wheel, 0 on shaft 0, thisshaft being extended somewhat beyond the elevatorframe, and mounted in abracketat 0, carried by another bracket, 0*, secured to the frame, andwhich has a bearing at k for the upper end of shaft J. The shaft J isgrooved and fitted to a feather or spline carried either by the wheel Kor the wheel I, so that said shaft can be moved longitudinally relativeto said spline or feather and still have a rotating engagementtherewith.

The manner of transmitting the power of 100 the engine to the shaft 0will be readily un derstood from the above description, the work-- ingrelation between the engine and the last said parts being constant inwhatever position the movable frame is located.

Power is taken from shaft 0 for the purpose of raising the elevator orlowering it relative to the shaft E as follows:

L is a chain-wheel on said shaft, and L a similar wheel on asupplemental shaft, I, mounted in the movable frame, there being a chainat Z, which unites the wheels L L.

f is a bevel-wheel on the end of shaft F, and rotated in one directionor the other by the beveled pinions m m. These are carried by a sleeve,M, joined to shaft Z by a feather, and provided with any suitableshipping mechanism. When it is desired to rotate the screw F in such wayso as to raise the movable frame, the pinion m is slipped intoengagement with wheel f, and when the screw is to be oppositelyrotatedthe other wheel, m, is brought into engagement. WVhen the shaft F is toremain stationary, the sleeve M is so situated as that neither of thewheels m m can engage with wheel f. The material which is carried to thetop is delivered to one or more chutes, N, which in turn deliver it todiverging chutes N N From these the material passes to carriers 0 0,each consisting of one or more chains, 0, and cross-bars 0. The carrier0 delivers material to a hopper, P, from whence it passes to the carrier1), and the carrier O delivers its material to a similar hopper, P, andcarrier 19. The carriers 19 p are arranged to run backward eitherhorizontally or somewhat inclined, and they deliver the material to thepoint ultimately desired. These various carriers may be constructed inany of the now known ways.

Q is the shaft through which power is transmitted to the variouscarriers above mentioned, O O p p. This shaft Q has a wheel, q, joinedby a chain, q, with a wheel, Q, on the shaft h".

R R are bevel-wheels on shaft Q, one driving the carrier 0 by abevel-wheel, S, and the other driving carrier 0 by a bevel-wheel, S. Bymeans of these parts of the mechanism I am enabled to elevate thematerial from a boat, car, or other receptacle in large buckets andsubsequently carry it to the points of ultimate delivery in smallermasses, and there fore effect the unloading of such receptacle veryrapidly. At or near the lower end of the movable frame I employadjustable braces, as shown at T, they being held in guides or othersupports carried by the stationary frame. They bear against the sidepieces, D, of the movable frame, and are preferably provided withanti-friction rollers t, to avoid any friction when the movable frame isbeing raised or lowered. At the lower end of the elevatorframe means areprovided for protecting the buckets, so that they shall not be pressedwith too great force upon the material below, and so that they shall notscrape the bottom of the receptacle which is being unloaded. As shown,these consist of a cross-bar, U, and supporting,

bars a, secured to the lower end of the bars I), the cross-bar U lyingbelow the path of the buckets.

What I claim is- 1. The combination of the stationary frame, the movableframe, the shaft passing through the movable frame, and the shaft or bartransverse thereto and carried by the movable frame, the two shaftsbeing joined together, substantially as and for the purpose set forth.

2. The combination of the stationary frame, the movable frame, the baror shaft on the stationary frame about which the movable frame swings,the transverse bar or shaft on the movable frame adapted to be connectedwith the aforesaid bar at various points to hold the movable framehigher or lower, and means for.

raising and lowering the last said frame, substantially as set forth.

3. The combination of the stationary frame, the movable frame, thescrew-shaft carried by the movable frame, the nut carried by thestationary frame, and the rotating devices which operate said screw,substantially as set forth.v

4. The combination of the stationary frame, the movable frame, thescrew-shaft secured to one of said frames, the nut secured to the otherand adapted to rock, and the power devices which rotate the screw-shaft,substantially as set forth.

5. The combination of the stationary frame, the movable frame, thescrew-shaft about the axis of which the movable frame rocks, the gearingmounted about the axis of the said shaft, and the gearing which drivesthe elevator connected with the aforesaid gearing,substantially asdescribed.

6. The combination of the stationary frame,

the movable frame, the shaft or bar about whose axis the movable framerocks, the gearing mounted upon said axis, the bracket-frame secured tothe movable frame to support said gearing, and the sliding shaft,substantially as set forth.

7. The combination of the stationary frame, the movable frame, the ,baror shaft about whose axis the movable frame rocks, a wheel,E ,andawheel, I, connected together and mounted upon said axis,the slidingshaft driven by wheel I, and a bracket-bearing connected with themovable frame and also with the wheel I and sliding shaft, substantiallyas set forth.

8. The combination of the stationary frame, the movable frame, the shaftat the end of the elevator which drives the latter, the screwshaft bywhich the elevator is adjusted, and

the power-transmitting devices interposed between the screwshaft andsaid shaft at the end of the elevator, substantially as described.

9. The combination of the stationary frame, the movable frame,thedevices which raise and lower the movable frame, the shaft which drivesthe elevator, and thesliding shaft which imparts power both to theelevator drivingshaft and to the raising and lowering, mechanism,substantially as set forth.

10. The combination of the stationary frame,

the sliding frame, the shaft F, shaft Z, and the shifting-pinions m m,substantially as set forth.

11. The combination of the stationary frame, the sliding frame, theshaft F, adapted to be connected at different points with the stationaryframe, shaft Z, shaft 0, and transmitting devices between shaft Oandshaft Z, substantially as set forth.

12. The combination of the stationary frame,

the movable frame, the bar or sh aft about whi oh of the diverginghoppers or chutes and the endless carriers which withdraw the materialtherefrom, substantially as set forth.

15. The combination of the elevator, the receiving-chute which takes thematerial therefrom, the diverging hoppers or chutes, the carriers whichrespectively take the material therefrom, and the carriers which carrythe material backward away from the last aforesaid carriers,substantially as set forth.

16. The combination of the carriers 0 O, the chute which feeds both ofsaid carriers,the carriers 19 p, and a wheel, Q, and mechanisminterposed between said wheels and carriers whereby it is adapted todrive them all simultaneously, substantially as set forth.

In testimony whereof I affiX my signature in presence of two witnesses.

BENJAMIN A. LEGG.

Witnesses:

DAVID C. WELLING, KATE E. WILLIAMS.

